AI drafting and analysis tool

Confidently analyse, review, and draft legal documents with CoCounsel Essentials UK

Achieve unmatched speed and accuracy with AI-powered skills all in one place that free up time for strategic thinking and client relationships

Minimise errors and ensure consistency in every legal document

Faster, more accurate insights with document analysis and review

Automate the review, comparison, and summarisation of large volumes of legal documents, including contracts, case files, correspondence, and discovery materials. With CoCounsel Essentials UK, legal professionals can analyse hundreds* of documents, pinpoint key information, identify compliance issues, and assemble timelines — freeing them to focus on higher-value work.

*Coming soon: legal professionals can analyse thousands of documents

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AI-powered legal drafting for efficient document creation

Find the best starting point by simultaneously searching multiple content repositories with Knowledge Search, and work directly in Microsoft Word to begin your drafting process. Use AI to detect content changes, adhere to specific formats, and finalise documents with ease.

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Integrations with the tools you use every day

Work more efficiently and access the information you need, when you need it. CoCounsel seamlessly connects to your Westlaw Advantage UK and Practical Law UK subscriptions to deliver trusted insights without switching between tools. Plus, with Microsoft 365 integrations, you can leverage CoCounsel's AI skills directly within familiar Microsoft applications like Teams, Outlook, and Word.

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Targeted legal insights to jumpstart your work

Leverage the pre-curated, expertly crafted prompts in the CoCounsel Library — including those for specific practice areas — for effective starting points to help you remove the guesswork from common legal tasks. Easily discover all the capabilities CoCounsel Essentials UK offers and get started on your projects faster.

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How CoCounsel Essentials UK helps every type of legal professional

Law firms

Work more efficiently, accurately, and thoroughly with robust, professional-grade AI capabilities, designed to empower both transactional attorneys and litigators.

Corporations

Efficiently manage contract review, compliance, and research with in-house legal teams, allowing leaders to focus more on strategic work and reduce operational risk.

Government

Leverage the power of AI to handle large volumes of legal documents, ensure compliance, and improve the speed and reliability of drafting and analysis tasks.

What legal professionals are saying about CoCounsel Essentials UK

"It is incredible to see how much CoCounsel has evolved in such a short period of time. Based on the roadmaps and platforms and integrations, we are increasingly excited to be on this journey," says Heaton.

"By partnering closely with Thomson Reuters and CoCounsel as it evolves, we are not only leveraging the benefits of the product itself, but contributing to the Thomson Reuters ecosystem, as well as the wider conversation around AI."

"With CoCounsel, we are shaping the future of the firm and pioneering the future of law at the same time."

Rob Heaton
Operations Director at Acuity Law

Frequently asked questions

Are any user content or prompts used by Thomson Reuters or third parties to train their GenAI-based products or underlying large-language models?

At Thomson Reuters, we do not use your user content or user prompts to train or improve CoCounsel Essentials UK or any third-party generative AI (GenAI) large-language models (LLMs). We do not use them in Thomson Reuters or third-party outputs, and neither OpenAI GPT nor Google Gemini stores them.

How does Thomson Reuters ensure that no user content or prompts are used to train Thomson Reuters or third-party GenAI-based products or underlying LLMs?

Thomson Reuters GenAI third-party partners, such as OpenAI and Google, are contractually prohibited from using any customer data to train their models. Additionally, where applicable, we have established systemic controls to turn off third parties' abuse-monitoring solutions, ensuring there is no human access to our customers' data or inclusion of that data in third-party models.

How long does Thomson Reuters retain user content and prompts in CoCounsel Essentials UK?

Retention of user content and prompts is customised to fit customer needs and set up at the organisation account level with support from a Thomson Reuters client manager. We then delete user content and user prompts in accordance with the customer's retention policy. Users also have the ability to delete their content and prompts in the product at any time.

How does Thomson Reuters protect user content and user prompts?

Thomson Reuters secures all data in transit via TLS 1.2, and symmetric encryption (AES-256) protects data at rest. All interactions with GenAI LLM providers use zero-retention API calls. All GenAI LLM requests originating from Thomson Reuters are processed under the identity "Thomson Reuters," never identifying the Thomson Reuters customer who made the request.

How does Thomson Reuters utilize usage information to improve CoCounsel Essentials UK?

Thomson Reuters analyses de-identified usage information to manage account health, plan for capacity, and develop our product roadmap.

Where does Thomson Reuters process and store user content and user prompts?

Systematic procedures and hosting are in the U.S. We process all interactions with OpenAI GPT and Google Gemini in the U.S. We host backup data in separate availability time zones in the U.S.

Region-based hosting is available in the UK, Australia, and Canada.

How does Thomson Reuters mitigate bias in its content?

Thomson Reuters has developed and implemented prompting guardrails that ensure our GenAI-based products will only produce responses from content drawn from a clearly defined and limited set of verified information, such as our own content databases. This practice restricts the model's ability to produce potentially objectionable content because it does not source information from the internet.

How does Thomson Reuters mitigate hallucinations?

Our Trust Team of attorneys manually creates and peer reviews tests for CoCounsel that represent real-world legal work. After comparing CoCounsel’s results to their manually created ideal response, they train an LLM to do regular, automated reviews. Every night, CoCounsel completes more than 1,500 such tests under attorney oversight, and in total, we’ve run more than one million tests on CoCounsel since its launch. 

Who owns user content, user prompts, and the output generated by CoCounsel Essentials UK?

Any user content and prompts remain the user's property to the extent the user has such ownership rights. Subject to applicable law and the Thomson Reuters terms and conditions, users own the outputs generated by CoCounsel Essentials UK.